Reliability solution for the stochastic fatigue crack growth problem

J. Tang, B. F. Spencer

Research output: Contribution to journalArticlepeer-review


A two-state stochastic model for fatigue crack growth problems is presented and solutions are given which will, for the first time, provide the distribution of the random time to reach a critical crack size directly. Two extensive fatigue data sets are then employed to verify the model. Several fatigue crack growth laws which account for the stress ratio are examined and the results show that the concept of crack closure will best describe the influence of stress ratio on fatigue crack growth. A detailed description of the procedure of parameter estimation is also given.

Original languageEnglish (US)
Pages (from-to)419-433
Number of pages15
JournalEngineering Fracture Mechanics
Issue number2
StatePublished - 1989
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


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